Demonstration apparatus for measuring weight self-change

A demonstration device and weight technology, applied in the field of physics teaching equipment, can solve problems such as inaccuracy, ambiguity, incomplete understanding of gravity in classical physics, etc.

Inactive Publication Date: 2008-11-05
冯建光
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, regarding the understanding of the weight of objects, there are still incomplete defects in classical physics and the shortcomings of vagueness in the unde

Method used

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  • Demonstration apparatus for measuring weight self-change
  • Demonstration apparatus for measuring weight self-change

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Embodiment Construction

[0038] The structure of the prototype embodiment of the present invention is: it is made up of box body 1, support frame 2, boom 3, spring scale 4, suspension hook 5, suspension ring 6, article 7, air 8. The box body 1 is a transparent container cube-shaped box body, which can be made of glass and is in a sealed state. It is filled with air 8 and maintains 1 atmosphere; The upper end of the arm 3, the fixed spring scale 4 at the lower end of the boom 3; the spring scale 4 should ensure that the measurement of the variation of the weight value of 0.0001-0.01 kg can be carried out, and its dial has corresponding scales. The hook 5 of the spring balance 4 hangs the ring 6 of the article 7 ; the article 7 is fixedly connected to the ring 6 . The volume of the item 7 is not less than 10 cubic meters, its weight is 50--100 kg, it is solid, metal or non-metal, and does not contact the box body 1. Spring balance 4 is made by existing relevant technology; The spring of spring balance ...

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Abstract

The invention relates to a physics teaching appliances technique, particularly to a demonstrate device for measuring the self-changing of the weight, comprising a box body, a support frame, a boom, a spring balance, a hook, an article and air, wherein the box body is the transparent container cube box made of glass in the sealing state and is full of air. The middle part is fixed with the supporting frame, the middle part of which is fixed with the boom, and the lower end of the boom is fixed with the spring balance; the hook of the spring balance is suspended with the hook of the article. In the second embodiment, the device is composed of a box body and an air balloon and the like, which is suitable for the research on the ground weight and the related teaching, including the related courses in the elementary school to the college.

Description

Technical field: [0001] The invention relates to physics teaching equipment technology, in particular to a demonstration device for measuring self-variation of weight. Background technique: [0002] The teaching instruments of classical physics about the weight of objects are only applicable to a relatively fixed area on the ground, but in a strict sense, the values ​​measured by the weights and measures are inaccurate; This is the case with the measurement of the weight of objects. Because this is a generally accepted physics principle: the weight of the item on the ground remains constant; that is, at any position on the earth's surface, the weight of the item remains constant throughout the year. [0003] However, the investigation of the Chinese scientific expedition team in the Arctic region of the earth shows that the gravitational acceleration in the Arctic region is smaller than the classical gravitational acceleration. Therefore, this fact shows that there is a mi...

Claims

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Application Information

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IPC IPC(8): G09B23/08
Inventor 冯建光
Owner 冯建光
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